Last Minute Flights from Ontario

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Fare calendar for the next 30 days
Fare calendar for the next 30 days

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* Rates are in CAD and based on historical search data, subject to change. GoLastMinute is a travel comparison site and does not sell tickets. Prices and availability are provided by partners and may not be available for your departure city. $69+ CAD sample rate based on a roundtrip fare from SAN to PHX from 06/05/2026 - 06/08/2026, found on 05/24/2026 with Frontier Airlines for $63 CAD.

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Last Minute Flight Deals from Ontario to Anywhere

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
San Francisco
$164+
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Chicago
$214+
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Nashville
$214+
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Seattle
$282+
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Boise
$283+
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San Antonio
$329+
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Denver
$339+
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Portland
$340+
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Austin
$341+
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Reno
$346+
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Dallas
$348+
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Las Vegas
$348+
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El Paso
$350+
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Sacramento
$350+
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Oakland
$350+
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Salt Lake City
$350+
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Denver
$242+
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San Francisco
$245+
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Las Vegas
$266+
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Portland
$296+
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Sacramento
$300+
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Seattle
$303+
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Seattle
$304+
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Phoenix
$311+
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Dallas
$312+
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El Paso
$313+
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Salt Lake City
$314+
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Austin
$320+
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Dallas
$322+
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San Antonio
$339+
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Oakland
$340+
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Nashville
$344+
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Last Minute Flight Deals from Ontario to Top Cities

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
San Francisco
$43+
Sep 17 – Sep 21
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Denver
$46+
Sep 21 – Sep 30
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Las Vegas
$90+
Sep 28 – Sep 29
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Seattle
$100+
Aug 25 – Aug 26
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Dallas
$116+
Sep 23 – Sep 30
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Phoenix
$117+
Sep 16 – Sep 23
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Nashville
$135+
Sep 15 – Sep 22
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Los Angeles
$140+
Sep 10 – Sep 14
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Atlanta
$164+
Sep 9 – Sep 16
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Miami
$203+
Sep 12 – Sep 17
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Orlando
$209+
Sep 8 – Sep 15
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New York
$213+
Sep 14 – Sep 18
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Airports in and nearby Ontario

The most commonly used airport near to Ontario is Ontario International (ONT), which is 2.75 kilometers from the center of the city.

Where can I go from Ontario International (ONT)?

People search the most for flights from Ontario to Las Vegas, Seattle, and Phoenix.

How to find the cheapest flights from Ontario?

The GoLastMinute Canada Fare Calendar is a great tool to find the best prices.